Dam Report

Upper Salt Creek Structure 4 Dam dam

Illinois, USA Salt Creek Hazard High
Today high
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Tonight low
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Dam height
14ft
Hazard rating
High
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Upper Salt Creek Structure 4 Dam -- None dam
Upper Salt Creek Structure 4 Dam None · Salt Creek
About this dam

Upper Salt Creek Structure 4 Dam

Upper Salt Creek Structure 4 Dam, also known as Twin Lakes Reservoir, is a vital infrastructure in Cook County, Illinois, designed to mitigate flood risks along the Salt Creek. Completed in 1987 by TORNROSE, CAMPBELLANDASSOC., this earth dam stands at a height of 14 feet and spans 3000 feet, providing a storage capacity of 775 acre-feet. The dam serves a primary purpose of flood risk reduction and also supports recreational activities in the area.

Managed by the local government and regulated by the Illinois Department of Natural Resources, Upper Salt Creek Structure 4 Dam poses a high hazard potential but is currently assessed as moderate risk. Despite its critical role in protecting the surrounding community from flooding events, the dam's condition assessment is not available, highlighting the importance of regular inspections and maintenance to ensure its structural integrity. With a spillway width of 32 feet and a maximum discharge capacity of 1300 cubic feet per second, the dam is well-equipped to handle significant water flow during peak periods.

Located in Palatine, Illinois, Upper Salt Creek Structure 4 Dam is a key component of the region's water resource management infrastructure. As climate change continues to impact precipitation patterns and extreme weather events, the dam plays a crucial role in safeguarding communities and ecosystems along the Salt Creek watershed. Its strategic design and operational oversight by the Natural Resources Conservation Service demonstrate a commitment to resilience and preparedness in the face of evolving environmental challenges.

StateNone
River / streamSalt Creek
NID IDIL50054
Owner typeLocal Government
Primary purposeFlood Risk Reduction
Dam typeEarth
Year built1987
Dam height14 ft
Dam length3,000 ft
Max storage775 AF
Normal storage200 AF
Hazard potentialHigh
ConditionNot Available
Last inspectionMon, 07 Oct 2019 00:00:00 GMT

Dam data reference

Condition Assessment

Satisfactory
No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action.
Poor
A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.

Hazard Potential Classification

High
Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environmental damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Detailed forecast

Plan around the weather

Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Regional inflow

Nearby streamflow gauges

USGS streamgauges around Upper Salt Creek Structure 4 Dam -- inflows here typically show up in storage 24-72 hours later.

Track Upper Salt Creek Structure 4 Dam in the Snoflo app

Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.

FAQ

About Upper Salt Creek Structure 4 Dam

Where does the data for Upper Salt Creek Structure 4 Dam come from?

Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.

How often is the report updated?

NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.

What does the High hazard rating mean?

The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.

What's "% of normal"?

The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).

Can I get alerts when storage crosses a threshold?

Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.

Premium feature

Favorites and alerts are part of Snoflo Premium. Save reservoirs, set storage thresholds, and get push notifications when conditions cross.

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Manage alerts in the Snoflo app

Custom alerts are configured in the iOS app -- favorite this dam, set a threshold, and you'll get a push the moment conditions cross.

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